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1.
Arq. bras. med. vet. zootec. (Online) ; 73(1): 141-154, Jan.-Feb. 2021. tab, graf, ilus
Article in English | LILACS, VETINDEX | ID: biblio-1153057

ABSTRACT

The consumption of inadequately thermally treated fish is a public health risk due to the possible propagation of Anisakis larvae and their antigenic proteins, the causative agent of the zoonotic disease anisakidosis. The present study demonstrated the physiological and histopathological changes that accompanied an oral inoculation of crude extracts from fresh and thermally treated Anisakis Type II (L3) in Wistar albino rats. Nematode worms were isolated from the marine fish Dicentrarchus labrax. They were examined and taxonomically identified using light and scanning electron microscopy. The study was performed in 6 rat groups: a control group (I), a garlic oil (GO) inoculated group (II), a fresh L3 inoculated group (III), a thermally treated L3 inoculated group (IV), a fresh L3 + GO inoculated group (V), and a thermally treated L3 + GO inoculated group (VI). It was observed that rats inoculated with fresh and thermally treated L3 crude extracts showed abnormal oxidative stress markers associated with the destruction of normal architecture of spleen and thymus. GO produced a protective effect in rat groups inoculated with L3 extracts + GO administration via the amelioration of oxidative stress markers, which was confirmed by the marked normal structure of the organs' histology. Cooking of L3 infected fish induced severe physiological and histopathological alterations compared to uncooked infected fish. The administration of garlic before and after fish eating is recommended to avoid the dangerous effect of anisakids, even if they are cooked.(AU)


O consumo de peixes tratados termicamente de forma inadequada é um risco à saúde pública devido à possível propagação das larvas de Anisakis e suas proteínas antigênicas, o agente causador da doença zoonótica anisakidose. O presente estudo demonstrou as alterações fisiológicas e histopatológicas que acompanharam a inoculação oral de extratos brutos de Anisakis Tipo II (L3) frescos e termicamente tratados em ratos Wistar albinos. Vermes nematoides foram isolados do peixe marinho Dicentrarchus labrax e foram examinados e identificados taxonomicamente usando microscopia óptica e eletrônica de varredura. O estudo foi realizado em 6 grupos de ratos: grupo controle (I), grupo inoculado com óleo de alho (GO) (II), grupo inoculado com L3 fresco (III), grupo inoculado com L3 tratado termicamente (IV), grupo inoculado com L3 + GO fresco (V), e grupo inoculado com L3 + GO tratado termicamente (VI). Observou-se que ratos inoculados com extrato bruto L3 fresco e tratado termicamente mostraram marcadores de estresse oxidativo anormais associados à destruição da estrutura normal do baço e do timo. GO produziu um efeito protetor em grupos de ratos inoculados com extrato L3 + administração de GO através da melhoria dos marcadores de estresse oxidativo, que foi confirmada pela marcante estrutura normal da histologia dos órgãos. O cozimento de peixes infectados com L3 induziu alterações fisiológicas e histopatológicas graves quando comparado com peixes infectados não cozidos. Recomenda-se a administração de alho antes e depois da ingestão do peixe para evitar o efeito perigoso dos anisakídeos, mesmo se cozidos.(AU)


Subject(s)
Animals , Rats , Anisakis , Anisakiasis/therapy , Anisakiasis/veterinary , Fishes/parasitology , Garlic/chemistry , Plant Oils/chemistry , Rats, Wistar
2.
Rev. bras. parasitol. vet ; 30(1): e015920, 2021. tab, graf
Article in English | LILACS | ID: biblio-1156210

ABSTRACT

Abstract The consumption of inadequately thermally treated fish is a public health risk due to the possible propagation of Anisakis larvae. The present study demonstrated the physiological and histopathological changes that accompanied an oral inoculation of crude extracts from fresh and thermally treated Anisakis Type II (L3) in rats. Worms were isolated from a marine fish and examined and identified using light and scanning electron microscopy. The study was performed in 6 rat groups: control (I), garlic oil (GO) inoculated (II), fresh L3 inoculated (III), thermally treated L3 inoculated (IV), fresh L3 + GO inoculated (V), and a thermally treated L3 + GO inoculated (VI) groups. Rats inoculated with fresh and thermally treated L3 showed abnormal liver and kidney functions associated with the destruction of normal architecture. GO produced a protective effect in rat groups inoculated with L3 extracts + GO via the amelioration of liver and kidney functions, which was confirmed by the marked normal structure on histology. Cooking of L3-infected fish induced severe alterations compared to uncooked fish. The administration of garlic before and after fish eating is recommended to avoid the dangerous effect of anisakids, even if they are cooked.


Resumo O consumo de peixe inadequadamente tratado termicamente representa um risco para a saúde pública, com a possibilidade da propagação de larvas de Anisakis. O presente estudo demonstrou as alterações fisiológicas e histopatológicas acompanhadas de inoculação oral de extractos brutos de Anisakis tipo II (L3) frescos e termicamente tratados em ratos. Os vermes foram isolados de um peixe marinho, examinados e identificados por microscopia de luz e eletrônica de varredura. O estudo foi conduzido em 6 grupos de ratos: controle (I), óleo de alho (GO) inoculado (II), L3 fresco inoculado (III), L3 tratado termicamente inoculado (IV), L3 fresco + GO inoculado (V), e um grupo L3 + GO tratado termicamente inoculado (VI). Observou-se que ratos inoculados com L3 fresco e tratados termicamente mostraram funções hepáticas e renais anormais, associadas à destruição da sua arquitetura normal. GO produziu um efeito protector em grupos de ratos inoculados com extractos L3 + GO através da melhoria das funções do fígado e dos rins, o que foi confirmado pela estrutura normal marcada da sua histologia. A cozedura de peixes infectados com L3 induziu alterações mais graves do que os peixes não cozidos. Recomenda-se a administração de alho antes e depois do consumo de peixe, para evitar o efeito perigoso dos anisakids, mesmo que sejam cozidos.


Subject(s)
Animals , Rats , Sulfides/pharmacology , Anisakis/drug effects , Anisakiasis/prevention & control , Anisakiasis/drug therapy , Allyl Compounds/therapeutic use , Allyl Compounds/pharmacology , Sulfides/therapeutic use , Food Parasitology , Rats, Wistar , Cooking , Fishes/parasitology , Larva , Anthelmintics/therapeutic use , Anthelmintics/pharmacology
3.
Rev. Inst. Nac. Hig ; 50(1-2): 71-75, Diciembre 2019. graf
Article in Spanish | LILACS, LIVECS | ID: biblio-1118412

ABSTRACT

Las larvas de nematodos en los peces, generalmente corresponde a especies de la familia Anisakidae, son gusanos redondos, sin segmentación; con hospedadores intermediarios y definitivos y un huésped accidental que es el humano, en quién va producir una enfermedad parasitaria del tacto digestivo, mundialmente conocida como anisakiasis, asociada a reacciones de hipersensibilidad debido a los alérgenos del parásito. La presencia de estos parásitos en los productos de la pesca, deberá ser controlada con medidas preventivas establecidas en la legislación sanitaria de países; estableciendo profilaxis, medidas higiénicas como consumir el pescado cocido, o sometido previamente a congelación a -20°C por 48 a 72 horas, para prevenir la enfermedad. Cuando enfocamos hacia una prospectiva de medidas sanitarias de control preventivo, se plantea el establecimiento de un plan de requerimientos de alimentos seguros, basado en el análisis de riesgos y control de puntos críticos (HACCP), constituido por un paquete de documentos escritos basados en los principios de seguridad de alimentos; que contendrá: el análisis de riesgos; controles preventivos; programas en la cadena de suministros; delineamiento de los procedimientos para ser seguidos por monitoreo, acciones correctivas y verificación. Estará basado en las obligaciones que se puedan establecer bajo jurisdicción regulatoria para el pescado, en cuanto a la pesca o captura, manipulación a bordo o en la orilla y mecanismos de conservación hasta el expendio; que dé lugar a un manual de buenas prácticas de manufactura, análisis de riesgo y controles preventivos de riesgos para la regulación de alimentos de origen marino para consumo humano


The larvae of nematodes in fish generally correspond to species of the Anisakidae family, they are round worms, without segmentation; with intermediate and definitive hosts and an accidental host that is human, in whom it will produce a parasitic disease of the digestive tract, worldwide known as anisakiasis, associated with hypersensitivity reactions due to parasite allergens. The presence of these Parasites in fishery products should be controlled with preventive measures established in the sanitary legislation of countries; establishing prophylaxis, hygienic measures such as consuming the cooked fish, or previously subjected to freezing at -20 ° C for 48 to 72 hours to prevent the disease. When we focus on a prospective of preventive control sanitary measures, the establishment of a plan for safe food requirements based on risk analysis and control of critical points (HACCP), constituted by a package of written documents based on the principles, is considered food safety; which will contain: risk analysis; preventive controls; programs in the supply chain; delineation of the procedures to be followed by monitoring, corrective actions and verification. It will be based on the obligations that can be established under the regulatory jurisdiction for fish, in terms of fishing or capture, handling on board or on the shore and conservation mechanisms up to the sale; that results in a manual of good manufacturing practices, risk analysis and preventive risk controls for the regulation of food of marine origin for human consumption


Subject(s)
Humans , Animals , Anisakis/growth & development , Anisakiasis/prevention & control , Food Safety , Fish Products/analysis , Fishes/parasitology , Gastrointestinal Tract/parasitology , Larva/growth & development
4.
Biomédica (Bogotá) ; 39(2): 241-246, ene.-jun. 2019. graf
Article in Spanish | LILACS | ID: biblio-1011436

ABSTRACT

Resumen La anisakiasis es una enfermedad parasitaria zoonótica causada por el consumo de pescados o mariscos crudos o poco cocidos infectados con nematodos de los géneros Anisakis, Pseudoterranova y Contracaecum. Se describe el primer caso de anisakiasis en Colombia y se resume la literatura médica disponible. Una mujer de 52 años de edad consultó por dolor epigástrico agudo de inicio abrupto, náuseas, vómitos, diarrea y urticaria después de consumir pescado. El examen físico reveló sensibilidad moderada en el epigastrio. El examen de laboratorio evidenció leucocitosis, en tanto que la radiografía simple y el electrocardiograma no reflejaron ninguna anormalidad. El diagnóstico se hizo mediante una endoscopia de vías digestivas altas, la cual reveló engrosamiento de la pared gástrica y un parásito en movimiento. Se encontró una larva de Anisakis y se la extrajo por endoscopia, lo que alivió el dolor de la paciente. Clínicamente, la anisakiasis puede presentarse como una enfermedad gástrica, intestinal, en otros sistemas o alérgica. El diagnóstico se hace con base en la elaboración del historial alimentario del paciente y la visualización directa de las larvas; el único tratamiento efectivo consiste en su extracción endoscópica.


Abstract Anisakiasis is a zoonotic parasitic disease caused by consumption of raw or undercooked fish or seafood infected with nematodes of the Anisakis, Pseudoterranova or Contracaecum genera. Here, we describe the first case of anisakiasis in Colombia and summarize the available literature. A 52-year-old female with a history of abrupt-onset sharp epigastric pain, nausea, vomit, diarrhea, and urticaria following fish consumption consulted the health service. The physical examination revealed moderate tenderness of the epigastric region; the laboratory evaluation showed leukocytosis and a simple X-ray and ECG showed no abnormalities. The diagnosis was made by endoscopic examination, which revealed a thickened gastric wall and a moving larval worm. An Anisakis larva was found and extracted endoscopically, which relieved the pain of the patient. Clinically, anisakiasis may present as a gastric, intestinal, extragastrointestinal or allergic disease. Diagnosis and treatment of anisakiasis are made by a dietary history, direct visualization and endoscopic extraction of possible larvae, which is the only effective therapy.


Subject(s)
Animals , Female , Humans , Middle Aged , Stomach Diseases/parasitology , Urticaria/etiology , Food Parasitology , Anisakis/isolation & purification , Anisakiasis/diagnosis , Fishes/parasitology , Raw Foods/adverse effects , Stomach Diseases/diagnosis , Stomach Diseases/immunology , Albendazole/therapeutic use , Gastroscopy , Anisakis/growth & development , Anisakiasis/surgery , Anisakiasis/immunology , Anisakiasis/drug therapy , Colombia , Combined Modality Therapy , Raw Foods/parasitology , Larva , Anthelmintics/therapeutic use
5.
Article in English | WPRIM | ID: wpr-786631

ABSTRACT

Anisakiasis (anisakidosis) refers to a foodborne zoonosis caused by ingesting raw or undercooked marine fish or cephalopods infected with anisakid larvae. The present study was performed to investigate the prevalence of anisakid larvae in anchovies (Engraulis japonica) purchased from 2 local markets in Gyeongsangnam-do, the Republic of Korea (=Korea), during 2018–2019. Anchovies were transported to our laboratory and examined by pepsin-HCl artificial digestion technique followed by microscopic observations and molecular analyses. The overall prevalence of anisakid larvae was 19.5% (39/200), from which a total of 51 larvae (av. 1.3 larvae/infected anchovy) were recovered. Sequencing of the larvae targeting the ITS region, including ITS1, 5.8S rRNA, and ITS2 genes confirmed the species of larvae as Anisakis pegreffii (54.9%; 28/51), Hysterothylacium sinense (23.5%; 12/51), and Hysterothylacium aduncum (21.5%; 11/51). The results suggested that anchovies could be a potential source of human anisakiasis in Korea.


Subject(s)
Anisakiasis , Anisakis , Cephalopoda , Digestion , Humans , Korea , Larva , Prevalence , Republic of Korea
6.
Article in Korean | WPRIM | ID: wpr-786610

ABSTRACT

Anisakidosis is a term that collectively refers to a human infection caused by larvae of the family Anisakidae. Because Anisakis simplex was the main cause, it was originally called anisakiasis or anisakiosis, but since other parasites such as Pseudoterranova decipiens also cause similar diseases, the family name is now used as the diagnostic name. Anisakidosis cases have been increasing steadily owing to the propagation of the Japanese raw-fish-eating culture, such as sushi and sashimi, around the world; the traditional raw-fish-eating habits of individual countries; the establishment of marine mammal protection laws; and the development of endoscopic diagnostic techniques. The disease continues to occur in Korea, where most human parasites are believed to have been eradicated and is probably the most common parasitic disease encountered in clinical practice. Anisakidosis is a disease associated with acute abdominal pain. Anisakid larvae can invade the entire digestive tract and abdominal cavity and cause abdominal pain and a variety of digestive system symptoms. Thus, the history of eating raw fish is very important for its differential diagnosis. The lack of a precise understanding of the pathogenesis and clinical course of this disease may lead to unnecessary surgery. Anisakidosis may also manifest as allergic symptoms. Therefore, it is necessary to understand anisakidosis from the perspective of public health, food hygiene, and preventive medicine.


Subject(s)
Abdominal Cavity , Abdominal Pain , Anisakiasis , Anisakis , Asians , Diagnosis, Differential , Digestive System , Eating , Food Hypersensitivity , Gastrointestinal Tract , Host-Parasite Interactions , Humans , Hygiene , Jurisprudence , Korea , Larva , Mammals , Parasites , Parasitic Diseases , Preventive Medicine , Public Health , Raw Foods , Unnecessary Procedures
7.
Article in Korean | WPRIM | ID: wpr-766607

ABSTRACT

This study aimed to determine the status of common parasitic disease in Korea in 2019. Twelve parasitic diseases were selected: toxocariasis, anisakiasis, paragonimiasis, sparganosis, cysticercosis, toxoplasmosis, clonorchiasis, enterobiasis, trichuriasis, trichomoniasis, cryptosporidiosis, and malaria. Their biology, epidemiology, pathogenesis, symptoms and signs, diagnosis, treatment, and prognosis were evaluated. Of the parasitic diseases, toxocariasis was the most prevalent according to serological results. Anisakiasis should be considered when acute gastrointestinal symptoms occur with a recent past history of raw seafood ingestion. Paragonimiasis, sparganosis, and cysticercosis can be diagnosed using an enzyme-linked immunosorbent assay; thus, enzyme-linked immunosorbent assay needs to be performed for suspected cases. Toxoplasmosis and cryptosporidiosis are opportunistic infections. The symptoms and signs are aggravated under immunocompromised conditions. Although the egg positivity rate of Clonorchis sinensis is higher than that of other intestinal parasitic diseases, encountering patients with complaints of symptoms caused by clonorchiasis is rare because the worm burden is low. Trichomoniasis is usually managed by gynecologists; therefore, it should be included in the differential diagnoses of vaginal diseases. The annual number of malaria cases has decreased, although it remains at approximately 500 cases per year. Malaria should be suspected when symptoms such as intermittent fever, headache, and splenomegaly are noted especially when the patients reside near demilitarized zones. Although the prevalence and number of reported cases of parasitic diseases have decreased in Korea, we should consider parasitic diseases in the list of differential diagnoses.


Subject(s)
Animals , Anisakiasis , Biology , Clonorchiasis , Clonorchis sinensis , Cryptosporidiosis , Cysticercosis , Diagnosis , Diagnosis, Differential , Eating , Enterobiasis , Enzyme-Linked Immunosorbent Assay , Epidemiology , Fever , Headache , Humans , Korea , Malaria , Opportunistic Infections , Ovum , Paragonimiasis , Parasitic Diseases , Prevalence , Prognosis , Republic of Korea , Seafood , Sparganosis , Splenomegaly , Toxocariasis , Toxoplasmosis , Trichuriasis , Vaginal Diseases
8.
Article in English | WPRIM | ID: wpr-761717

ABSTRACT

Anisakiasis is a zoonotic disease induced by anisakid nematodes, and endoscopic inspection is used for a diagnosis or remedy for it. Anisakis simplex, Anisakis physeteris, and Pseudoterranova decipiens had been reported to be the major species causing human infections, particularly, in Japan. However, in Korea, recent studies strongly suggested that Anisakis pegreffii is the major species of human infections. To support this suggestion, we collected anisakid larvae (n=20) from 20 human patients who were undergone gastrointestinal endoscopy at a health check-up center in Korea, and molecular identification was performed on the larvae using PCR-RFLP analysis and gene sequencing of rDNA ITS regions and mtDNA cox2. In addition, anisakid larvae (n=53) collected from the sea eel (Astroconger myriaster) were also examined for comparison with those extracted from humans. The results showed that all human samples (100%) were identified as A. pegreffii, whereas 90.7% of the samples from the sea eel were A. pegreffii with the remaining 9.3% being Hysterothylacium aduncum. Our study confirmed that A. pegreffii is the predominant species causing human anisakiasis in Korea, and this seems to be due to the predominance of this larval type in the fish (sea eels) popularly consumed by the Korean people. The possibility of human infection with H. aduncum in Korea is also suggested.


Subject(s)
Anisakiasis , Anisakis , Diagnosis , DNA, Mitochondrial , DNA, Ribosomal , Eels , Endoscopy, Gastrointestinal , Humans , Japan , Korea , Larva , Zoonoses
9.
Article in English | WPRIM | ID: wpr-761757

ABSTRACT

To analyze the clinical and endoscopic features of colonic anisakiasis. A retrospective chart review of 20 patients with colonic anisakiasis, who were diagnosed by colonoscopy at 8 hospitals between January 2002 and December 2011, was performed. Patients’ mean age was 53.6±10.74 years. Seventy percent patients were men. Acute abdominal pain was a common symptom that mostly developed within 48 hr after the ingestion of raw fish, and which lasted for 1–28 days. Sixty percent patients had ingested raw fish before the diagnosis of colonic anisakiasis and 40% patients were incidentally found to have colonic anisakiasis during the screening colonoscopies. Leukocytosis and eosinophilia were each found in 20% of the patients. In all patients who underwent colonoscopy, the worms were removed with biopsy forceps, except in 1 case, and a definite diagnosis of anisakiasis was made. In some cases of colonic anisakiasis, colonoscopy may be helpful in the diagnosis and treatment to avoid surgical intervention.


Subject(s)
Abdominal Pain , Anisakiasis , Biopsy , Colon , Colonoscopy , Diagnosis , Eating , Eosinophilia , Humans , Korea , Leukocytosis , Male , Mass Screening , Retrospective Studies , Surgical Instruments
10.
Infectio ; 22(4): 206-212, Oct.-Dec. 2018. tab, graf
Article in English | LILACS, COLNAL | ID: biblio-953994

ABSTRACT

Abstract Introduction: Anisakidosis is a zoonotic disease caused by the consumption of raw or undercooked fish or crustaceans parasitized by nematode larvae of the Anisakidae family. In this study, the presence of anisakid larvae was identified in fish species of consumer of the Pacific coast in Ecuador and Colombia. Methods: We obtained 438 samples grouped into twenty species of fish caught in the fishing ports of Manta, Santa Rosa, Buenaventura and Tumaco. The morphological identification of the larvae was made by taxonomy and the percentage of infection, were calculated. For the identification of species, a multiplex PCR was carried. Results: The taxonomic review identified eight species of fish as hosts of the genders Anisakis and Pseudoterranova. The larvae were isolated mainly from the intestine with a percentage of infection between 18 and 100%. The percentage of infection and identification of anisakids in these fish will aid in the prevention and control of anisakiasis as a possible emerging disease for this area of the Pacific. With the multiplex PCR, A. pegreffii, A. physeteris, and P. decipiens were identified. Conclusion: The identification of these species is reported for the first time in this geographical area, providing the basis for future research into the Anisakidae family.


Resumen Introducción: La anisakidosis es una enfermedad zoonótica causada por el consumo de pescado o crustáceos crudos o poco cocinados parasitados por las larvas de nematodos de la familia Anisakidae. En este estudio, se identificó la presencia de larvas de anisakidos en especies de peces de consumo de la costa del Pacífico en Ecuador y Colombia. Métodos: Obtuvimos 438 muestras agrupadas en veinte especies de peces capturados en los puertos pesqueros de Manta, Santa Rosa, Buenaventura y Tumaco. La identificación morfológica de las larvas se realizó por taxonomía y se calculó el porcentaje de infección. Para la identificación de las especies, se llevó a cabo una PCR múltiplex. Resultados: La revisión taxonómica identificó ocho especies de peces como huéspedes de los géneros Anisakis y Pseudoterranova. Las larvas se aislaron principalmente del intestino con un porcentaje de infección entre 18 y 100%. El porcentaje de infección e identificación de anisakidos en estos peces ayudará a prevenir y controlar la anisakiasis como una posible enfermedad emergente en esta área del Pacífico. Con la PCR múltiplex, se identifico A. pegreffii, A. physeteris y P. decipiens. Conclusión: La identificación de estas especies se informa por primera vez en esta área geográfica, proporcionando la base para futuras investigaciones sobre la familia Anisakidae.


Subject(s)
Animals , Aquaculture , Nematoda , Classification , Anisakiasis , Colombia , Harbor Sanitation , Ecuador , Fishes , Intestines/abnormalities
11.
Article in Korean | WPRIM | ID: wpr-715641

ABSTRACT

Human anisakiasis is a disease caused by an infestation of the third stage larvae of family anisakidae. The ingested larvae invade the gastrointestinal wall, causing clinical symptoms that include abdomen pain, nausea, and vomiting. Although enteric anisakiasis is extremely rare, it can induce intestinal obstruction. We report a case in which emergency surgery was needed due to intestinal obstruction that coincided with symptoms related to anisakiasis, along with a brief literature review.


Subject(s)
Abdomen , Anisakiasis , Emergencies , Humans , Intestinal Obstruction , Jejunum , Larva , Nausea , Vomiting
12.
Article in English | WPRIM | ID: wpr-742256

ABSTRACT

Along with globalization of traveling and trading, fish-borne nematodiases seems to be increasing in number. However, apart from occasional and sporadic case reports or mini-reviews of particular diseases in particular countries, an overview of fish-borne nematodiasis among travelers have never been performed. In this review, we gathered fish-borne nematodiasis among travelers for recent 25 years by an extensive global literature survey using appropriate keywords, e.g. travelers diseases, human infection, anisakiasis, gnathostomiasis, capillariasis, sushi, sashimi, ceviche, Gnathostoma, Pseudoterranova, Anisakis, Capillaria, etc., as well as various combinations of these key words. The Internet search engines PubMed, Medline, Google and Googler Scholar were used as much as possible, and the references of every paper were checked in order to identify useful and reliable publications. The results showed unexpectedly high incidence of gnathostomiasis and low incidence of anisakidosis. The different incidence values of the infection with several fish-borne zoonotic nematode species are discussed, as well as some epidemiological aspects of the infections. The difficulties of differential diagnosis in non-endemic countries are emphasized. It is concluded that travelers must avoid risky behaviors which can lead to infection and that physicians and health authorities must advice travelers on the risks of eating behaviors during travel.


Subject(s)
Anisakiasis , Anisakis , Capillaria , Diagnosis, Differential , Feeding Behavior , Gnathostoma , Gnathostomiasis , Humans , Incidence , Internationality , Internet , Public Health , Search Engine
13.
Rev. méd. hered ; 28(4): 223-225, oct.-dic. 2017.
Article in Spanish | LILACS, LIPECS | ID: biblio-991431
14.
Arq. bras. med. vet. zootec ; 69(2): 422-428, mar.-abr. 2017. graf
Article in Portuguese | LILACS, VETINDEX | ID: biblio-833947

ABSTRACT

Anisaquidose é uma doença provocada por parasitos da família Anisakidae e se caracteriza por manifestações gastrointestinais e alérgicas. O Anisakis simplex é o parasito mais patogênico ao homem e altamente alergênico. Porém, outros anisaquídeos também são danosos aos humanos, mas é desconhecida a imunogenicidade dessas larvas. O objetivo deste trabalho foi avaliar o potencial imunogênico do parasito Hysterothylacium deardorffoverestreetorum (HD) em modelo murino. Camundongos da linhagem BALB/c foram divididos em três grupos experimentais e receberam as preparações antigênicas obtidas de larvas de HD: extrato bruto de larvas (EBH), extrato secretado/ excretado de larvas (ESH) e extrato bruto de larvas após excreção/secreção (EEH). Amostras séricas foram obtidas em diferentes dias após imunização para determinação dos níveis de anticorpos específicos pelo ensaio imunoenzimático (ELISA). Os resultados demonstram aumento na produção de imunoglobulina (Ig) G após a segunda imunização, com aumento progressivo após a terceira imunização. Já em relação à IgE, a reatividade foi mais tardia, demonstrando aumento progressivo após a terceira imunização. Foi avaliada a imunidade celular por meio da intradermorreação, como resultado estatisticamente significativo em relação ao controle utilizado. Este experimento é a primeira descrição da potencialidade patogênica desse parasito em mamíferos e representa um avanço no diagnóstico da anisaquidose humana.(AU)


Anisaquidosis is a disease caused by parasites of Anisakidae family and is characterized by gastrointestinal and allergic reactions. The Anisakis simplex is a more pathogenic Anisakidae to humans and is highly allergenic. However, other species of this family also have characteristics that are harmful to humans, but little is known about the immunogenicity this parasites. The objective of this study was to experimentally assess the immunogenic potential of the parasite Hysterothylacium deardorffoverestreetorum (H.D) in mice. Mice of inbred BALB/c strain were divided into three groups and received three immunizations of the following antigenic preparations obtained from L3 larvae H.D: Crude larval extract of H.D (CEH) Extract secreted / excreted larvae H.D. (ESH) and crude extract of larvae after excretion / secretion (EEH). Serum samples were obtained on different days after immunization to determine the levels of circulating specific antibodies by enzyme-linked immunosorbent assay (ELISA). The results show increased production of immunoglobulin (Ig) G after the second immunization with a gradual increase after the third immunization. Regarding IgE reactivity, this occurred later, demonstrating a progressive increase only after the third immunization. Cellular immunity was evaluated by intradermal, and showed statistically significant result compared to the control used. This experiment is the first description of the pathogenic potential of this parasite in mammals and represents a breakthrough in the diagnosis of human Anisakidosis.(AU)


Subject(s)
Animals , Anisakiasis/immunology , Ascaridoidea/immunology , Immunogenetic Phenomena , Muridae , Enzyme-Linked Immunosorbent Assay/veterinary
16.
Article in English | WPRIM | ID: wpr-224985

ABSTRACT

Anisakis is a parasite with life cycles involving fish and marine mammals. Human infection, anisakiasis, occurs with the ingestion of raw infected seafood and usually presents with acute or chronic gastrointestinal symptoms from esophageal or gastric invasion. We report a rare caseinvolving the oral cavity. A 39-year-old male presented with oral and sub-sternal pain of one day duration after eating raw cuttlefish. Physical examination revealed areas of erythema and edema with a central white foreign particle on the labial and buccal mucosa. With microscopic field we could remove the foreign material from the lesions. The foreign material was confirmed to be Anisakis. Anisakis was also removed from the esophagus by esophagogastroduodenoscopy. The patient was discharged the following day without complication. Anisakiasis is frequently reported in Korea and Japan, countries where raw seafood ingestion is popular. The symptoms of acute anisakiasis include pain, nausea, and vomiting and usually begin 2–12 hours after ingestion. The differential diagnosis includes food poisoning, acute gastritis, and acute pancreatitis. A history of raw seafood ingestion is important to the diagnosis of anisakiasis. Treatment is complete removal of the Anisakis to relieve acute symptoms and prevent chronic granulomatous inflammation.


Subject(s)
Adult , Anisakiasis , Anisakis , Decapodiformes , Diagnosis , Diagnosis, Differential , Eating , Edema , Endoscopy, Digestive System , Erythema , Esophagus , Foodborne Diseases , Gastritis , Humans , Inflammation , Japan , Korea , Life Cycle Stages , Male , Mammals , Mouth , Mouth Mucosa , Nausea , Pancreatitis , Parasites , Physical Examination , Seafood , Vomiting
18.
Article in Korean | WPRIM | ID: wpr-649337

ABSTRACT

Anisakiasis is one of the fish-transmitted infections that result from the accidental ingestion of third-stage larva belonging to the family Anisakidae. A large number of cases of gastric anisakiasis have been reported in countries where the eating of raw fish is customary; however, there have been very few reports of anisakiasis involving the oral cavity and oropharynx. A 46-year-old woman complained of sore throat shortly after eating raw flatfishes. The oropharyngeal examination revealed two living tubular spinning objects in the submucosal layer of left posterior pillar. It was removed with biopsy forceps. We report a very rare and unique case of anisakiasis in oropharynx confirmed by pathologic findings. To best of our knowledge, this is the first case report involving oropharyngeal anisakiasis in Korea.


Subject(s)
Anisakiasis , Biopsy , Eating , Female , Flatfishes , Humans , Korea , Larva , Middle Aged , Mouth , Oropharynx , Pharyngitis , Surgical Instruments
19.
Article in English | WPRIM | ID: wpr-225150

ABSTRACT

The present study was performed to report 15 anisakiasis cases in Korea and to review the Korean cases reported in the literature. Total 32 Anisakis type I larvae were detected in the stomach of 15 patients by the endoscopy. Single worm was detected from 12 cases, and even 9 larvae were found from 2 cases. Epigastric pain was most commonly manifested in almost all cases, and hemoptysis and hematemesis were seen in 1 case each. Symptom manifestations began at 10-12 hr after eating fish in 73.3% cases. Endoscopy was performed 1-2 days after the symptom onset in most cases. The common conger, Conger myriaster, was the probable infection source in 7 cases. In the review of Korean anisakiasis cases, thus far, total 645 cases have been reported in 64 articles. Anisakis type I larva was the most frequently detected (81.3%). The favorable infection site of larvae was the stomach (82.4%). The common conger was the most probable source of human infections (38.6%). Among the total 404 cases which revealed the age and sex of patients, 185 (45.8%) were males, and the remaining 219 (54.2%) were female patients. The age prevalence was the highest in forties (34.7%). The seasonal prevalence was highest in winter (38.8%). By the present study, 15 cases of gastric anisakiasis are added as Korean cases, and some epidemiological characteristics of Korean anisakiasis were clarified.


Subject(s)
Adult , Animals , Anisakiasis/epidemiology , Anisakis/genetics , Female , Fish Diseases/parasitology , Fishes/classification , Food Contamination/analysis , Humans , Larva/genetics , Male , Middle Aged , Prevalence , Republic of Korea/epidemiology , Stomach/parasitology , Stomach Diseases/epidemiology
20.
Article in English | WPRIM | ID: wpr-19164

ABSTRACT

Anisakis simplex sensu stricto (s.s.), Anisakis pegreffii, Anisakis berlandi (=A. simplex sp. C), and Anisakis typica are the 4 major species of Anisakis type I larvae. In the Republic of Korea (Korea), A. pegreffii, A. berlandi, and A. typica larvae in fish hosts has seldom been documented. In this study, molecular analysis was performed on Anisakis larvae from the sea eels (Astroconger myriaster), the major source of human anisakiasis in Korea, collected from Tongyeong City, a southern coastal area of Korea. All 20 sea eels examined were infected with Anisakis type I larvae (160 larvae; 8 per fish). Their species were analyzed using PCR-RFLP patterns and nucleotide sequences of internal transcribed spacers (ITS1, 5.8 subunit gene, and ITS2) and mitochondrial cytochrome c oxidase 2 (cox2). Most (86.8%; 112/129) of the Anisakis type I larvae were A. pegreffii, and 7.8% (10/129) were A. typica. The remaining 5.4% (7/129) was not identified. Thus, A. pegreffii is the major species of anisakid larvae in sea eels of the southern coast of Korea.


Subject(s)
Animals , Anisakiasis/parasitology , Anisakis/classification , DNA, Helminth/genetics , DNA, Ribosomal Spacer/genetics , Eels/growth & development , Fish Diseases/parasitology , Larva/classification , Phylogeny , Polymorphism, Restriction Fragment Length , Republic of Korea
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